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    • 6. 发明授权
    • Splitter circuit
    • 分路电路
    • US07388885B2
    • 2008-06-17
    • US10493345
    • 2002-09-25
    • Bernd HeiseHeinrich SchenkChristian Wolff
    • Bernd HeiseHeinrich SchenkChristian Wolff
    • H04J1/00
    • H04Q11/0428H04Q2213/13039H04Q2213/1319H04Q2213/13209H04Q2213/13306H04Q2213/1332H04Q2213/13322
    • A splitter circuit (19) serves to combine on the transmission side signals which are to be transmitted in different frequency bands (A-C), as well as to separate on the reception side these signals which are transmitted in different frequency bands. For this purpose, the splitter circuit (19) has a circuit section (13) designed as purely passive, for the rough signal and impedance separation, as well as the filters (3, 4; 9, 10) allocated to the individual transmission and reception sections, for the exact filtering out of the individual signal in each case. These separate filters (3, 4; 9, 10) are arranged in the transmission direction upstream of a corresponding four-wire/two-wire conversion, and in the reception direction downstream of a corresponding two-wire/four-wire conversion, so that the signal stream takes place via these filters in one direction only, and the filters can be designed as purely active filters or digital filters. In particular, the filters (3, 4; 9, 10) can be dimensioned as of high Ohmic resistance in the reception path, in order to reduce the power consumption.
    • 分离器电路(19)用于在传输侧上组合要在不同频带(A-C)中传输的信号,以及在接收侧分离在不同频带中传输的这些信号。 为此,分路器电路(19)具有被设计为纯无源的用于粗信号和阻抗分离的电路部分(13)以及分配给单独传输的滤波器(3,4; 9,10),以及 接收部分,用于在每种情况下精确地滤出单个信号。 这些分离的滤波器(3,4; 9,10)在相应的四线/二线转换的上游的传输方向上布置,并且在相应的二线/四线转换的下游的接收方向上 信号流仅通过这些滤波器发生,滤波器可以被设计为纯有源滤波器或数字滤波器。 特别地,为了降低功耗,可以将滤波器(3,4; 9,10)设计成接收路径中的高欧姆电阻。
    • 8. 发明授权
    • Apparatus for measuring the total content of organic carbon and nitrogen
in water
    • 用于测量水中有机碳和氮的总含量的装置
    • US5459075A
    • 1995-10-17
    • US125410
    • 1993-09-22
    • Walter FabinskiBernd HielscherPeter SchlauChristian Wolff
    • Walter FabinskiBernd HielscherPeter SchlauChristian Wolff
    • G01N31/00G01N33/18G01N33/00G01N21/00
    • G01N33/182G01N33/1846Y10T436/176152Y10T436/235
    • An apparatus for measuring the total content of organic carbon (TOC) and nitrogen (TN) in water. The TOC value is correctly determined as the sum of the liquid, dissolved, and solid substances of a specimen of the water. The apparatus includes a NDIR gas analyzer for simultaneously measuring the concentration of CO.sub.2 and NO gas components with a phase separator, a thermal reactor, a condenser, and two amplifiers for the pneumatic signals of the receivers with an indicator for the measured TOC and TN concentrations. The specimen is split into a gaseous part and a liquid part in the phase separator. The gaseous part which essentially contains the inorganic fraction of carbon, the TIC fraction, in the form of CO.sub.2 gas is cooled in a condenser until a substantial fraction of its water vapor content is separated in the condenser by condensation. The dried gaseous part is directed via the comparison vessels as comparison gas. The gaseous part exiting from the comparison vessels is returned to the liquid part of the specimen again in its entirety and oxidized together with the latter in a thermal reactor. The gas specimen which is formed in so doing is charged via the condenser with water vapor having the same temperature as the comparison gas and is fed to the measurement chambers of the vessels as measurement gas which contains the entire carbon dioxide fraction and the entire nitrogen oxide fraction of the gas specimen.
    • 一种用于测量水中有机碳(TOC)和氮(TN)的总含量的装置。 TOC值被正确地确定为水样品的液体,溶解和固体物质的总和。 该装置包括一个NDIR气体分析仪,用于通过相分离器,热反应器,冷凝器和两个放大器同时测量CO2和NO气体组分的浓度,用于接收器的气动信号,并具有测量TOC和TN浓度的指标 。 样品在相分离器中分成气态部分和液体部分。 基本上含有碳的无机部分的气体部分TIC部分以CO 2气体的形式在冷凝器中冷却,直到其水蒸汽含量的相当一部分在冷凝器中通过冷凝分离。 干燥的气态部分通过比较容器作为比较气体引导。 从比较容器中排出的气体部分全部返回到样品的液体部分,并在热反应器中与后者一起被氧化。 这样形成的气体样品通过冷凝器与具有与比较气体相同温度的水蒸汽充入,并被供给至容器的测量室,作为包含整个二氧化碳馏分和整个氮氧化物的测量气体 气体样本的分数。
    • 9. 发明授权
    • Method for the measurement of the total content of organic carbon and
nitrogen in water
    • 用于测量水中有机碳和氮的总含量的方法
    • US5292666A
    • 1994-03-08
    • US880576
    • 1992-05-08
    • Walter FabinskiPeter HubschmannPeter SchlauChristian Wolff
    • Walter FabinskiPeter HubschmannPeter SchlauChristian Wolff
    • G01N33/18G01N33/00G01N21/00
    • G01N33/1846Y10T436/176152Y10T436/177692Y10T436/23Y10T436/235
    • A method for measuring of the total content of organic carbon and of nitrogen in water. The total organic carbon value is obtained correctly as the sum of the liquid, dissolved, and solid materials of a sample of the water. The device comprises a non-dispersive infrared (NDIR) gas analyzer for the simultaneous measurement of the concentration of the gas components carbon dioxide CO.sub.2 and nitrogen oxide NO. The NDIR gas analyzer includes a phase separator (50), a thermal reactor (52), a double cooler (70), two valves (54, 56), as well as two amplifiers (58, 60) for the pneumatic signals of the receiver detectors (30, 36) with a display (62. 64) for the measured concentrations, total organic carbon and total nitrogen. The sample is split in a phase separator (50) into a gaseous and into a liquid part. The gaseous part, which comprises substantially the inorganic part of the carbon, the total inorganic carbon part in the form of carbon dioxide CO.sub.2 gas, is cooled in a cooler to such an extent that a substantial part its water vapor content is deposited in the cooler by condensation. The dried gaseous part is led as comparison gas through the comparison cuvette. This step serves to compensate the total inorganic carbon part of the sample and to compensate for unavoidable water vapor cross-sensitivities during the measurement of the carbon dioxide CO.sub.2 concentration and of the nitrogen oxide NO concentration.
    • 一种用于测量水中有机碳和氮的总含量的方法。 总有机碳值正确地作为水样品的液体,溶解和固体物质的总和获得。 该装置包括用于同时测量气体成分二氧化碳CO2和氮氧化物NO的浓度的非分散红外(NDIR)气体分析仪。 NDIR气体分析仪包括相分离器(50),热反应器(52),双重冷却器(70),两个阀(54,56)以及两个放大器(58,60),用于 接收器检测器(30,36),其具有用于测量浓度的显示器(62.64),总有机碳和总氮。 样品在相分离器(50)中分成气态并进入液体部分。 基本上包含碳的无机部分的气体部分是二氧化碳CO 2气体形式的总无机碳部分在冷却器中被冷却至使其大部分水汽含量沉积在冷却器中的程度 通过冷凝。 干燥的气体部分作为比较气体通过比较反应杯引导。 该步骤用于补偿样品的总无机碳部分并补偿在测量二氧化碳CO 2浓度和氮氧化物NO浓度期间不可避免的水蒸气交叉敏感性。